what other cars can i find the same transmishion as a 98 eclips 2.0 dohc auto

The definitive way to find out what fits what is to consult a used part source, such as an auto recycler or wrecking yard that sells used transmissions. They'll likely have an application list that you can check. A dealership parts catalog can also have this information. Lastly, I'll share that the 2003 Eclipse does not even use the same engine, and the transmission is definitely different -- so that's not a match. The 1998 and 1999 do share components, and you may be able to find an applicable transmission for your 1998 from a 1999 model. Not all match, but yours, the F4AC1, was offered both years. Good luck.